IPA: /ˌkɒdɪkəˈlɒdʒɪkəl/
KK: /kɒdɪkəˈlɒdʒɪkəl/
Relating to the study of manuscripts and their physical characteristics, such as binding, paper, and writing style.
The codicological analysis revealed important details about the manuscript's history.
Codicological → It is formed from "codex" (from Latin *codex*, meaning a book or manuscript) and "-logical" (from Greek *logikos*, meaning pertaining to reason or study). The term refers to the study of manuscripts and books, particularly in terms of their physical structure and historical context.
Think of 'codex' as a book and '-logical' as relating to study — so codicological means the study of books and manuscripts.